Climate change is projected to have impacts on ecosystem services under scenarios of the IPCC. In the summer of 2016, elevated seawater temperatures triggered mass coral bleaching in Sekisei Lagoon, southern Japan. Based on data from field surveys and relevant websites, we mapped potentials of four ecosystem services (fisheries production, aquarium fish production, recreational diving and seaweed control) supplied by coral reef fishes before and after the bleaching. We also evaluated whether current management options had mitigated the negative effects of extreme heating and coral bleaching on the ecosystem service potentials. Before the coral bleaching, the economic value of recreational diving was 41.44 billion yen per year for the entire lagoon, while those of fisheries production and aquarium fish provision were 2.10 billion and 15.03 billion yen, respectively. After bleaching, the all four services decreased. The marine park zone and extermination area of crown of thorns starfish mitigated decreases in species richness and the value of recreational diving following coral bleaching. Extreme heating and coral bleaching are considered to be representative of a possible future state under global warming, and the results suggest that even management for local disturbances can mitigate the interactive effect of climate change on ecosystem services.